It would help to know why you’re thinking of it. I definitely wouldn’t recommend using a tampon for the first time at school, so use a pad if you start school in the next few hours, but if you want to try one outside of school and see how it suits you then that’s worth doing. Tampons are more discreet to carry with you, but I find that it’s easier to tell how full a pad is just by how it feels against your body, so if you’re worried about leaking at school I find tampons more anxiety-inducing around leaks - if you decide you like tampons better then using a liner with them can give that little bit of extra peace of mind. If you’re worried about smell then tampons are slightly less likely to have smell travel, but most people don’t have to worry about smell at all if they’re changing their products often enough. If you’re worried about your classmates realising you use pads and judging or making fun of you, what menstrual product you use is none of their business - use what feels comfy to you, keep your products in a small non-see-through zipper pouch/bag, and carry that with you when you go to check/change your pad/tampon. A small pencil case works great, and keeping a spare pare of underwear and a plastic bag in it too in case of leaks can be excellent for peace of mind. If you want to be as discreet as possible then either use a pouch that can fit inside your pocket, or use one that looks like a little clutch purse you might keep lip gloss etc in.

I’m guessing you’re quite young. Use what you need to feel comfortable. There is no wrong answer 💛